Exterior surface of a container sidewall



FIG. 1 is a top, right side, front perspective view of exterior surface of a container sidewall showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a left side elevational view thereof. 

The ornamental design for an exterior surface of a container sidewall, as shown and described. 